cal

 

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 CAL(1)                  System General Commands Manual                  CAL(1)
 
NAME
      cal - displays a calendar
 
SYNOPSIS
      cal [-mjy13] [[month] year]
 
DESCRIPTION
      Cal displays a simple calendar.  If arguments are not specified, the cur­
      rent month is displayed.  The options are as follows:
 
      -1      Display single month output (use if cal was built with -3 as
              default to get older traditional output)
 
      -3      Display prev/current/next month output (use if cal was built with
              traditional -1 as default to get newer improved output)
 
      -m      Display Monday as the first day of the week.  (The default is
              Sunday.)
 
      -j      Display Julian dates (days one-based, numbered from January 1).
 
      -y      Display a calendar for the current year.
 
      A single parameter specifies the year (1 - 9999) to be displayed; note
      the year must be fully specified: ``cal 89'' will not display a calendar
      for 1989.  Two parameters denote the month (1 - 12) and year.  If no
      parameters are specified, the current month's calendar is displayed.
 
      A year starts on Jan 1.
 
      The Gregorian Reformation is assumed to have occurred in 1752 on the 3rd
      of September.  By this time, most countries had recognized the reforma­
      tion (although a few did not recognize it until the early 1900's.)  Ten
      days following that date were eliminated by the reformation, so the cal­
      endar for that month is a bit unusual.
 
 HISTORY
      A cal command appeared in Version 6 AT&T UNIX.
 
 BSD                              June 6, 1993                              BSD

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